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ANTI-PERCOLATOR ADJUSTMENT: Should be made after pump and metering
rod adjustments. Back out throttle lever adjusting screw so that throttle
valves seat in bores of carbureter. With throttle valve seated, insert .015" feeler
gauge (T109-72) between anti-percolator stem and lips on anti-percolator
arm. Then bend lips so that center of indicator lines are just flush with
top of anti-percolator plug. Care should be taken so there is an even adjustment
made on both anti-percolator lips.
UNLOADER ADJUSTMENT: With throttle wide open, distance between upper edge
of choke valve and inner wall
of air horn should be 3/16". (Use gauge T109-28.) Adjustment can be
made by bending lip on fast idle connector link. With throttle wide open,
push choker valve open. Choke should lock within 5° of wide open position.
If it does not lock, recheck unloader adjustment. Closing the throttle will
release choker valve. Choker trip lever is notched out for this setting.
FAST IDLE ADJUSTMENT: Hold choker valve tightly closed and adjust fast idle
arm screw .to give .030" to .035° opening between edge of throttle
valve and bore of carbureter, side opposite port. (Use gauge T109-29.)
Packard— 1941—Carbureter No. 478S—List Price $41.15
All Prices Subject to Prevailing Surcharge
WHEN SERVICING, USE GASKET ASSORTMENT No. 656—PRICE $0.95; REPAIR PACKAGE
No. 1092A, PRICE $7.00 PART NAMES IN BOLD TYPE, LISTED BELOW, INDICATE CONTENTS
OF REPAIR PACKAGE
PART NAME List Price
Body flange assembly $6.60
Throttle valve 15
Throttle shaft and lever assembly 1.30
Air horn and climatic control assembly 8.80
Air horn and pump jet assembly 3.30
Choker valve ..... 30
Low speed jet assembly (2) .45
Body flange rivet plug- 04
Pump discharge rivet plug 04
Rivet plug (5) .04
Idle port rivet plug- - (2) .04
Nozzle passage plug (2) .15
Rivet plug ................°---. ...(2) .04
Nozzle retainer plug - (2) .15
By-pass bleeder screw plug.... . -- (2) .30
Nozzle (2) .45
Choker piston lever, link and shaft assembly .60
Choker trip lever 15
Strainer nut and gasket assembly 45
Pump check needle .................................................... .20
*Needle seat gasket 07
Bowl strainer gasket 07
Nozzle gasket (2) .07
Metering rod jet gasket (2) .07
Idle passage gasket (3) .07
Float and lever assembly_ 1.20
Float lever pin 07
Needle and seat assembly 1.20
Bowl cover strainer gauze 15
30-23 Piston housing strainer
30-34 Pump strainer
30A-41 Idle adjustment screw (2)
39-10 Valve attaching screw (2) 2 for
49A-18S Anti-percolator valve plug assembly (2)
53A-127S Fast idle arm, pin and screw assembly
53A-164S Pump operating lever and countershaft ass'y
53A-216S Pump arm and collar assembly
61-57 Adjustment screw lock spring (2)
61-120 Metering rod spring
61-123 Connector link spring
61-142 Fast idle arm spring
61-143 Plunger spring
.......................
61-151 Pump arm spring ----°—
61-171 Pump spring -_ ----
61-199 Vacuum piston spring
61-229 Fast idle cam spring
63-45 Ball retainer ring
Part No. PART NAME List Price
75-519 Metering rod—1 size lean (.065"-.065" to
.062"-.052" .... 45
75-520 Metering rod—2 sizes lean (.066"-.066" to
.0635"-.054") -45
86-9 Lock washer (6) .02
86-12 Flange stud lock washer (4) .02
86-17 Lock washer (Use with 101-68 and 101-72)..(6) .02
101-10 Clamp screw .. .07
101-26 Coil housing attaching screw (2) 2 for .07
101-61 Bowl cover attaching screw (6) .07
101-65 Trip lever attaching screw for .07
101-65 Coil housing attaching screw (Sup. by
101-26) (2) 2 for .07
101-68 Body flange attaching screw (Sup. by
101-149S) (4) 07
101-69 Throttle centering screw 07
101-70 Fast idle arm attaching screw 15
101-72 Air horn attaching screw (Sup. by
101-150S) ........................(2) 07
101-73 Throttle valve attaching screw (4) 2 for 07
101-74 Throttle shaft arm attaching screw 07
101-84 Fast idle adjustment screw 07
101-121 Throttle lever adjustment screw 07
101-128 Air horn attaching screw—special 20
101-149S Body flange attaching screw and washer ass'y 07
101-150S Air horn attaching screw and washer ass'y-... .07
105A-11 Flange stud nut (4) 07
111-28S Anti-percolator arm and screw assembly 30
114-34S Throttle shaft arm and pin assembly 15
115-66 Throttle connector rod 35
116-13 Check ball 04
117-47 Fast idle connector link 15
117-58 Pump arm link .07
118-33 Dust cover ........ .75
120-125S Metering rod jet and gasket assembly (2) 45
121-43 Body flange gasket - 35
121-61 Air horn gasket 15
121-63 Bowl cover gasket 15
121-74 Coil housing gasket 07
129-12 Metering rod disk disk ................................................
(2) .04
136-34 Choker shaft washer 04
136-37 Connector rod washer 04
136-38 Throttle shaft washer 04
146-107 Bowl cover (Not sold sep't'ly, part of 146-1085)
146-108S Bowl cover and strainer assembly 1 90
150-62 Choke piston pin.----- ....... ..... .04
150-81 Metering rod pin 07
150A-10 Pin spring (5) .02
150A-14 Countershaft pin spring .. .02
Housing retainer (2)
Pump plunger and rod assembly (Identify
by shaft No. 49-127) 1.05
Metering rod—standard, 064"-.064" to
.060"-.050" ------------ ----- (2)
NOTE: Small figures in parentheses following part name
does not appear only one piece is used.
*Gaskets so marked must be soaked in 90 proof denatured alcohol for 15 minutes,
installed on part and let dry before using.
List price of $4.40 per 100 applies to parts listed at $0.07 each. List price
of $1.85 per 100 applies to parts listed at $0.04 each.
List price of $2.55 per 100 applies to parts listed at $0.05 each. List price
of $0.75 per 100 applies to parts listed at $0.02 each.
160-35 Choke piston 30
160-58S Vacuum piston and link assembly 45
170M64S Thermostatic coil and housing assembly 2 95
.45 181-81S Fast idle cam assembly 45
indicate number of pieces used in one carbureter. Where this number
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